| | Ashcroft 0至30磅通用水密开关 | 15 | ￥1510.00 | ￥1510.00 | | ￥1510.00 |  |
| | Cole-Parmer FR4L49BNBN-CP 浮子流量计 | 8 | ￥803.00 | ￥803.00 | | ￥803.00 | |
| | Ashcroft B4-24-B-XCY-200# 压力开关 | 15 | ￥1510.00 | ￥1510.00 | | ￥1510.00 | |
| | Ashcroft APANSDLS02 400PSI 压力开关 | 19 | ￥1910.00 | ￥1910.00 | | ￥1910.00 | |
| | Cole-Parmer® pH电极，线，单路口，没有ATC，10英尺的电缆，镀锡端 | 11 | ￥1155.00 | ￥1155.00 | | ￥1155.00 | |
| | 美国Interscan 4090-5.00m过氧化氢H2O2气体检测仪 | 270 | ￥27000.00 | ￥27000.00 | | ￥27000.00 | |
